<template>
    <div class="app-container">
      <el-container class="app">
        <el-aside width="calc(30% - 20px)" style="background-color: white">
          <el-container>
            <el-header>
              <el-row>
                <el-col :span="24">
                  <el-input suffix-icon="el-icon-search" placeholder="Enter 回车搜索联系人" v-model="contactQueryParams.userName" @keyup.enter.native="getContactList"/>
                </el-col>
              </el-row>
              <el-row style="margin-top: 5px">
                  <el-button size="mini">全部</el-button>
                  <el-button size="mini">新招呼</el-button>
                  <el-button size="mini">仅沟通</el-button>
                  <el-button size="mini">有面试</el-button>
              </el-row>
            </el-header>
            <div v-loading="contactListLoading">
              <el-main v-if="contactList.length > 0" v-infinite-scroll="contactLoadMore" :infinite-scroll-distance="750" :infinite-scroll-disabled="contactListTotal < 10" class="msgListMain">
                <el-row class="msgUserList" v-for="(item, index) in contactList" :key="item.contactUserId" :style="index > 0 && 'margin-top: 10px'" @click.native="loadMessage(item.id)">
                  <el-col :span="5">
                    <el-image :src="require('@/assets/images/avatar_login.png')" fit="fill" style="width: 70%;border-radius: 50%; margin-top: 6px"/>
                  </el-col>
                  <el-col :span="19">
                    <el-row>
                      <el-col :span="5"><span style="font-weight: 500; font-size: 16px">{{item.userName}}</span></el-col>
                      <el-col :span="15">
                        <span style="font-size: 15px">{{item.job}}</span>
                        <el-divider direction="vertical"/>
                        <span style="font-size: 15px">{{item.salary}}</span>
                      </el-col>
                    </el-row>
                    <el-row>
                      <el-col :span="5" style="font-size: 13px; text-overflow: ellipsis; white-space: nowrap">
                        <span><i class="el-icon-circle-check"></i>  {{item.endMsg}}</span>
                      </el-col>
                      <el-col :span="5" style="float: right">
                        <el-dropdown class="hover_down_menu">
                          <span class="el-dropdown-link">
                            <i class="el-icon-arrow-down el-icon-more"></i>
                          </span>
                          <el-dropdown-menu slot="dropdown">
                            <el-dropdown-item>置顶</el-dropdown-item>
                            <el-dropdown-item>删除</el-dropdown-item>
                          </el-dropdown-menu>
                        </el-dropdown>
                      </el-col>
                    </el-row>
                  </el-col>
                </el-row>
              </el-main>
              <el-main v-else class="msgListMain_empty">
                <el-row>
                  <el-col :span="24">
                    <!-- <img src="@/assets/images/contact.png" style="width: 80%; height: 80%"/> -->
                  </el-col>
                </el-row>
                <el-row>
                  <el-col :span="24">
                    <span style="color: gray">暂无联系人</span>
                  </el-col>
                </el-row>
              </el-main>
            </div>
          </el-container>
        </el-aside>
        <el-main :class="currentContact.id ? 'main' : 'main_empty'" v-loading="msgListLoading">
          <div v-if="currentContact.id">
            <el-row>
              <el-col :span="8" style="color: #666">
                <span style="font-weight: 500; font-size: 16px">{{currentContact.userName}}</span>
                <span style="font-size: 16px; margin-left: 30px">{{currentContact.industry}}</span>
                <el-divider direction="vertical"/>
                <span style="font-size: 16px;">{{currentContact.job}}</span>
              </el-col>
              <el-col :span="6" style="float: right">
                <el-button size="small" type="primary">电话</el-button>
                <el-button size="small" type="primary" icon="el-icon-time">面试</el-button>
                <el-button size="small">取消置顶</el-button>
              </el-col>
            </el-row>
            <el-row>
              <el-col :span="24">
                <span>{{currentContact.major}}</span>
                <span style="color: red; font-size: 17px; margin-left: 20px">{{currentContact.salary}}</span>
                <span style="margin-left: 20px">{{currentContact.city}}</span>
              </el-col>
            </el-row>
            <el-row>
              <el-col :span="24" class="msg_content" id="message_content">
                <el-row v-for="(item, index) in msgList" :key="item.id" :style="index > 0 && 'margin-top: 30px'">
                  <div v-if="item.userId === currentContact.contactUserId">
                    <el-col :span="2" style="text-align: center">
                      <el-image :src="require('@/assets/images/avatar_login.png')" fit="cover" style="width: 40%;border-radius: 50%"/>
                    </el-col>
                    <el-col :span="10" style="font-size: 16px; line-height: 40px;">
                      <span>{{item.content}}</span>
                      <span style="font-size: 11px; color: gray; margin-left: 5px">{{item.createTime}}</span>
                    </el-col>
                  </div>
                  <div v-else>
                    <el-col :span="24" style="font-size: 16px;">
                      <div class="chat_bubble">
                        <span>{{item.content}}</span>
                      </div>
                      <i class="el-icon-circle-check" style="float: right; margin-right: 5px; color: lightgray; vertical-align: bottom; margin-top: 23px"></i>
                      <span style="font-size: 11px; color: gray; margin-right: 5px; float: right; margin-top: 25px">{{item.createTime}}</span>
                    </el-col>
                  </div>
                </el-row>
                <el-row id="message_content_end" style="height: 15px"><el-col></el-col></el-row>
              </el-col>
            </el-row>
            <el-row>
              <el-col :span="24">
                <el-row>
                  <el-col :span="24">
                    <el-popover
                      placement="top-start"
                      trigger="click">
                      <div>
                        <VEmojiPicker :showSearch="false" @select="insertEmoji" />
                      </div>
                      <!-- <img slot="reference" src="@/assets/images/emoji.png" title="表情" class="input_top_menu_img"/> -->
                    </el-popover>
                    <!-- <img src="@/assets/images/offenWord.png" title="常用语" class="input_top_menu_img" style="margin-left: 10px"/> -->
                  </el-col>
                </el-row>
   
                <el-input type="textarea" :rows="3" v-model="inputVal" style="font-size: 17px; color: black" @keyup.enter.native="send" placeholder="Enter 回车发送消息"/>
              </el-col>
            </el-row>
          </div>
          <div v-else>
            <el-row>
              <el-col :span="24">
                <!-- <img src="@/assets/images/message.png"/> -->
              </el-col>
            </el-row>
            <el-row>
              <el-col :span="24">
                <span style="color: gray">与您进行过沟通的联系人都会在左侧列表中显示</span>
              </el-col>
            </el-row>
          </div>
        </el-main>
      </el-container>
    </div>
  </template>
   
  <script>
  import { VEmojiPicker } from 'v-emoji-picker';
  import { parseTime } from '@/utils/ruoyi';
  import { listContact, getContact, updateContact} from "@/api/system/contact";
  import { addMessage } from "@/api/system/message";
   
  export default {
    name: "chat",
    components: {
      VEmojiPicker
    },
    data() {
      return {
        //联系人列表
        contactList: [],
        contactListTotal: 0,
        contactListLoading: false,
        //消息记录
        msgList: [],
        msgListTotal: 0,
        msgListLoading: false,
        inputVal: '',
        search: '',
        contactUserId: null,
        userId: null,
        contactQueryParams: {
          pageSize: 10,
          pageNum: 1
        },
        currentContact: {},
        msgflag : true
      }
    },
    mounted() {
      window.addEventListener("onmessageWS", this.subscribeMessage);
    },
    created() {
      this.userId = this.$store.state.user.id;
      this.subscribeMessage();
      this.getContactList();
    },
    methods: {
      getContactList() {
        this.contactListLoading = true;
        this.contactQueryParams.userId = this.userId;
        listContact(this.contactQueryParams).then(response => {
          if (response.code === 200) {
            this.contactList = response.rows;
            this.contactListTotal = response.total;
            const contactUserId = this.$route.query.userId;
            if (contactUserId) {
              this.contactUserId = contactUserId;
              let contact = response.rows.find(row => row.contactUserId == contactUserId);
              this.loadMessage(contact.id);
            }
          }
          this.contactListLoading = false;
        })
      },
      contactLoadMore() {
        // this.contactQueryParams.pageSize = 5;
        // this.contactQueryParams.pageNum++;
        this.getContactList();
      },
      loadMessage(concatId) {
        this.msgListLoading = true;
        getContact(concatId).then(response => {
          if (response.code === 200) {
            this.currentContact = response.data;
            console.log(response.data.message);
            
            this.msgList = response.data.messages;
            // console.log(this.msgList);
            
          }
          this.msgListLoading = false;
          this.fleshScroll();
        })
      },
      insertEmoji(emoji) {
        this.inputVal += emoji.data;
      },
      send() {
        const message = {
          contactId: this.currentContact.id,
          userId: this.userId,
          content: this.inputVal,
          roomId: this.currentContact.roomId
        }
        // const dmsg = JSON.stringify(message);
        if (this.msgflag == true)
        {this.msgList = [],
          this.msgflag =false;
        }
        
        // console.log(typeof(this.msgList));
        this.msgList.push({
          ...message,
        //   dmsg,
          id: this.msgList.length + 1,
          createTime: parseTime(new Date())
        })
        this.fleshLastMsg();
        addMessage(message);
        const msg = {
            sendUserId: this.userId,
            sendUserName: this.$store.state.user.name,
            userId: this.currentContact.contactUserId,
            type: "chat",
            detail: this.inputVal
        }
        this.$websocket.sendWebsocket(JSON.stringify(msg));
        this.inputVal = '';
        this.fleshScroll();
      },
      subscribeMessage(res) {
        console.log(res);
        if (res) {
            const { sendUserId, sendUserName, userId, type, detail } = res.detail.data;
            const message = {
              id: 1,
              contactId: userId,
              userId: sendUserId,
              content: detail,
              roomId: this.currentContact.roomId,
              createTime: parseTime(new Date())
            }
            this.msgList.push(message);
            this.fleshLastMsg();
            this.fleshScroll();
        }
      },
      fleshLastMsg() {
        const index = this.contactList.findIndex(e => e.id === this.currentContact.id);
        this.contactList[index].endMsg = this.msgList[this.msgList.length - 1].content;
    //     this.form = {
    //     id: null,
    //     userId: null,
    //     contactUserId: null,
    //     userName: null,
    //     avatar: null,
    //     job: null,
    //     salary: null,
    //     industry: null,
    //     city: null,
    //     endMsg: this.contactList[index].endMsg,
    //     createdAt: null,
    //     updatedAt: null
    //   };

    //     updateContact(this.form);
      },
      fleshScroll() {
        this.$nextTick(() => {
          document.getElementById("message_content_end").scrollIntoView();
        })
      }
    }
  }
  </script>
   
  <style scoped lang="scss">
  .app-container {
    background: linear-gradient(180deg, rgba(0, 190, 189, .1), rgba(136, 255, 254, .2) 50%, rgba(242, 244, 247, .1));
  }
  .app {
    background-color: white;
    border-radius: 12px 12px 0 0;
  }
  .msgListMain {
    height: 700px;
    overflow-y:auto;
    margin-top: 15px;
  }
  .msgUserList {
    border-radius: 10px;
  }
  .msgListMain_empty {
    display: flex;
    height: 600px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
  }
  .hover_down_menu {
    display: none;
  }
  .msgUserList:hover {
    background-color: #f2f2f2;
    cursor: pointer;
  }
  .msgUserList:hover .hover_down_menu{
    display: block;
  }
  .el-dropdown-link {
    cursor: pointer;
  }
  .el-icon-arrow-down {
    font-size: 15px;
    font-weight: 500;
  }
  .main {
    background-color: white;
    height: 800px;
    margin-left: 5px;
  }
  .main_empty {
    display: flex;
    background-color: white;
    height: 700px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }
  .main_empty .el-row {
    text-align: center;
  }
  .main_empty img {
    width: 25%;
  }
  .msg_content {
    margin-top: 30px;
    height: 550px;
    overflow: auto;
    //background-color: gray;
  }
  .chat_bubble {
    float: right;
    margin-right: 35px;
    color: #333;
    background-color: rgba(0, 190, 189, .2);
    height: 40px;
    line-height: 40px;
    padding: 0 12px 0 12px;
    border-radius: 5px;
  }
  .input_top_menu_img{
    width: 22px;
    height: 22px;
    cursor: pointer;
  }
  </style>